@curious aardvark, as I've been working on this project from the point of creating the split files, etc, other problems have arisen. The individual members of the dish and tower are too fine to be printed, which resulted in me creating the solid equivalent of the tower with visual details as a replacement. It printed fine, although I used the wrong resin!

With the tower sliced away from the top, the entire model will fit in my resin printer without splitting it. The split dropped in the middle of "disaster area" text which is itself exceedingly small detail. Any split in that area would be near-impossible to sand smooth to invisibility. It would be more practical to find a different plane to perform the split, if that's the direction considered.

I'm working with SonOf at the moment to complete the project, although I recognize that shipping is going to be better on your side of the pond.